11145442 has 40 divisors (see below), whose sum is σ = 21377232. Its totient is φ = 4321800.

The previous prime is 11145401. The next prime is 11145443. The reversal of 11145442 is 24454111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11145443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52717 + ... + 52927.

Almost surely, 2^11145442 is an apocalyptic number.

11145442 is a deficient number, since it is larger than the sum of its proper divisors (10231790).

11145442 is an equidigital number, since it uses as much as digits as its factorization.

11145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 231 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 11145442 is about 3338.4789949916. The cubic root of 11145442 is about 223.3739026817.

Adding to 11145442 its reverse (24454111), we get a palindrome (35599553).

It can be divided in two parts, 1114 and 5442, that added together give a palindrome (6556).

The spelling of 11145442 in words is "eleven million, one hundred forty-five thousand, four hundred forty-two".